Takes one to know one.

Rising executive Tim Conrad works for a boss who hosts a monthly dinner in which the guest who brings the biggest buffoon gets a career-boost. Tim plans on not attending until he meets Barry, a man who builds dioramas using stuffed mice. Barry's blundering but good intentions send Tim's life into a downward spiral, threatening a major business deal and possibly scuttling Tim's engagement to his fiancee.
Dinner for Schmucks keeps every mind human — it fights its subject at zero distance. The story fights on E8/E11 of the E0–E14 reality ladder.
Films fighting at the same level of reality, about the same things.
Shared director or cast.